This circuit can flash for up to 30 months using alkaline batteries as shown in the table next to the diagram. The circuit is from a Radio Electronics from January 1992.
This experimental good sensibility radio was obtained from a 1968 magazine. The magazine no longer...
This circuit was found in Popular Electronics. Its purpose is to warn the visually impaired when a glass...
Found in a 1965 Electronic Design, this circuit makes it possible to select signals with an...